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Band offsets between and phase change materials in the pseudobinary system
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View: Figures


Image of FIG. 1.
FIG. 1.

(a) The valence band spectra for bulk stoichiometric phase change alloys along the pseudobinary line (left) and bulk (right). The position of the VBM of each material is determined by linear extrapolation of the leading edge of the valence band spectrum to the base line, as illustrated in the plot. (b) The and core-level spectra obtained from the respective bulk samples.

Image of FIG. 2.
FIG. 2.

Core-level spectra of an ultrathin phase change alloy on bulk . Energy differences between the core-level and VBM for each material, as well as between core-levels of different materials are also shown.

Image of FIG. 3.
FIG. 3.

(a) The valence band offset and conduction band offset between and various amorphous alloys lying along the tieline of . (b) A schematic energy band diagram of the energy band offsets between alloys and . Energy values show are in units of electron volt. Top and bottom edges of each rectangle represent and , respectively.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Band offsets between SiO2 and phase change materials in the (GeTe)x(Sb2Te3)1−x pseudobinary system